mirror of
https://github.com/digistump/DigistumpArduino.git
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116 lines
4.4 KiB
C
116 lines
4.4 KiB
C
/*
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pins_arduino.h - Pin definition functions for Arduino
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Part of Arduino - http://www.arduino.cc/
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Copyright (c) 2007 David A. Mellis
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General
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Public License along with this library; if not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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Boston, MA 02111-1307 USA
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$Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
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Modified 28-08-2009 for attiny84 R.Wiersma
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Modified 14-10-2009 for attiny45 Saposoft
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*/
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#ifndef Pins_Arduino_h
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#define Pins_Arduino_h
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#include <avr/pgmspace.h>
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#include "core_build_options.h"
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#if defined( __AVR_ATtinyX313__ )
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#define PORT_A_ID 1
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#define PORT_B_ID 2
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#define PORT_D_ID 4
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#endif
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#if defined( __AVR_ATtinyX4__ )
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#define PORT_A_ID 1
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#define PORT_B_ID 2
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#endif
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#if defined( __AVR_ATtinyX5__ )
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#define PORT_B_ID 1
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#endif
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#define NOT_A_PIN 0
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#define NOT_A_PORT 0
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#define NOT_ON_TIMER 0
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#define TIMER0A 1
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#define TIMER0B 2
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#define TIMER1A 3
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#define TIMER1B 4
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//changed it to uint16_t to uint8_t
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extern const uint8_t PROGMEM port_to_mode_PGM[];
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extern const uint8_t PROGMEM port_to_input_PGM[];
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extern const uint8_t PROGMEM port_to_output_PGM[];
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extern const uint8_t PROGMEM port_to_pcmask_PGM[];
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extern const uint8_t PROGMEM digital_pin_to_port_PGM[];
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// extern const uint8_t PROGMEM digital_pin_to_bit_PGM[];
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extern const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[];
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extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
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// Get the bit location within the hardware port of the given virtual pin.
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// This comes from the pins_*.c file for the active board configuration.
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//
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// These perform slightly better as macros compared to inline functions
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//
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#define digitalPinToPort(P) ( pgm_read_byte( digital_pin_to_port_PGM + (P) ) )
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#define digitalPinToBitMask(P) ( pgm_read_byte( digital_pin_to_bit_mask_PGM + (P) ) )
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#define digitalPinToTimer(P) ( pgm_read_byte( digital_pin_to_timer_PGM + (P) ) )
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#define analogInPinToBit(P) (P)
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// in the following lines modified pgm_read_word in pgm_read_byte, word doesn't work on attiny45
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#define portOutputRegister(P) ( (volatile uint8_t *)( pgm_read_byte( port_to_output_PGM + (P))) )
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#define portInputRegister(P) ( (volatile uint8_t *)( pgm_read_byte( port_to_input_PGM + (P))) )
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#define portModeRegister(P) ( (volatile uint8_t *)( pgm_read_byte( port_to_mode_PGM + (P))) )
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#define portPcMaskRegister(P) ( (volatile uint8_t *)( pgm_read_byte( port_to_pcmask_PGM + (P))) )
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#if defined(__AVR_ATtinyX5__)
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#define digitalPinToPCICR(p) (((p) >= 0 && (p) <= 5) ? (&GIMSK) : ((uint8_t *)NULL))
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#define digitalPinToPCICRbit(p) (PCIE)
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#define digitalPinToPCMSK(p) (((p) >= 0 && (p) <= 5) ? (&PCMSK) : ((uint8_t *)NULL))
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#define digitalPinToPCMSKbit(p) (p)
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#endif
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#if defined(__AVR_ATtinyX4__)
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#define digitalPinToPCICR(p) (((p) >= 0 && (p) <= 10) ? (&GIMSK) : ((uint8_t *)NULL))
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#define digitalPinToPCICRbit(p) (((p) <= 2) ? PCIE1 : PCIE0)
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#define digitalPinToPCMSK(p) (((p) <= 2) ? (&PCMSK1) : (((p) <= 10) ? (&PCMSK0) : ((uint8_t *)NULL)))
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#define digitalPinToPCMSKbit(p) (((p) <= 2) ? (p) : (10 - (p)))
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#endif
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#if defined(__AVR_ATtiny4313__)
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#define digitalPinToPCX(p,s1,s2,s3,s4,s5) \
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(((p) >= 0) \
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? (((p) <= 1) ? (s1) /* 0 - 1 ==> D0 - D1 */ \
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: (((p) <= 3) ? (s2) /* 2 - 3 ==> A1 - A0 */ \
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: (((p) <= 8) ? (s3) /* 4 - 8 ==> D2 - D6 */ \
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: (((p) <= 16) ? (s4) /* 9 - 16 ==> B0 - B7 */ \
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: (s5))))) \
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: (s5))
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// s1 D s2 A s3 D s4 B
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#define digitalPinToPCICR(p) digitalPinToPCX( p, &GIMSK, &GIMSK, &GIMSK, &GIMSK, NULL )
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#define digitalPinToPCICRbit(p) digitalPinToPCX( p, PCIE2, PCIE1, PCIE2, PCIE0, 0 )
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#define digitalPinToPCMSK(p) digitalPinToPCX( p, &PCMSK2, &PCMSK1, &PCMSK2, &PCMSK0, NULL )
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#define digitalPinToPCMSKbit(p) digitalPinToPCX( p, p, 3-p, p-2, p-9, 0 )
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#endif
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#endif
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